fixup! Movement: Add isMovingItem method to be possible check if the object is moving physically or not

Delivery Cell follow the same logic as Deliver Line to decide if a
movement is moving item. There is no "Delivery Movement" class yet, so I
duplicate the method for now.

Without this fix, item tracking no longer work when using variations.

(cherry picked from commit d561dd5b)
nexedi/erp5!70

This reverts commit 0168bf60
(cherry picked from commit a1cf5e48)

ref !70

refs !73  72db2000

See !49

This way it is isolated it in a transaction that is less likely to fail. Activate with max_retry=0 and conflict_retry=False not to send activity twice in case of error.
As with email, if there was an error in activity processing, it is advised to investigate the transport logs to see if message was send or not.

event_simulation_workflow already call `send` type based method upon start transitions.
This workflow was not chained to portal_type, but if it would have been then message would be sent twice.

see !60

When a currency exchange line is (in)validated, we need to reindex the currency exchange
cells that acquire validation state from the currency exchange line.

This allows defining an exchange rate without end date

codemirror python's completion just complete on builtins, so that hack is a bit better

The real motivation was to make sure that search match is displayed when searching with Ctrl+F / Ctrl+G

codemirror: display an animation in window title so that the window flash when component has been saved.

Use case: save component on one tab, go to "run live test" tab and wait for component to be saved to make sure code runs with latest version

Since sending email will not work without destination email, we can globally set this constaint

This sends too many emails.

Some parts were outdated

This reverts commit f0808ac6.

Otherwise test will fail because the user is not indexed yet

test: update causality state explicitly because normal users have no write to modify in solving state.

Because solve() is now unrestecred method.

This reverts commit ab9e6e69.

they are mostly 'Modify portal content' permission.